Mentor v8.6_4 manual Load Paths

Load Paths Command Dictionary

Load Paths

Tools Supported: FastScan

Scope: Atpg, Good, and Fault modes

Prerequisites: A properly formatted path definition file must exist at the specified filename location.

Usage

LOAd PAths filename [-Force -Noforce]

Description

Reads into FastScan the path definitions contained in the specified ASCII file.

The Load Paths command reads the paths defined in the specified ASCII file into FastScan program memory. “ The Path Definition File” heading in the Scan and ATPG Process Guide describes the formatting for that file.

You can specify for FastScan to create ATPG patterns to detect path delay faults by first placing the paths into a properly formatted file, then using the Load Paths command, and finally by adding the faults on those paths with the Add Faults or Load Faults command. You must also specify the path delay fault type with the Set Fault Type command.

If you return to the Setup mode with faults in the path delay fault list, FastScan deletes the faults in that list and issues a warning message.

You can use multiple Load Paths commands and the results are additive. However, if you do not use the -Force switch, and one of the following conditions fails when FastScan reads in the path data, FastScan generates an error and terminates the execution of the Load Paths command:

∙The path name must not be the same as the name of an existing path.

∙The first pin for a path must be a valid launch point. A valid launch point is a primary input of a scan cell state element, or a non-scan state element that satisfies the C1 clock rule.

2-238 FastScan and FlexTest Reference Manual, V8.6_4